The subtitle is The Global Expansion of Britain. The book received strong reviews in the UK and these are justified. Here is the bottom line: I started it Wednesday, have read parts of it every day, and I am still reading it. There is interesting and fresh material on almost every page. Think of it as a selective history of the building of the British empire.
So far it is my favorite non-fiction book of 2013. Here is one good WSJ review.